Car-truck.



W. S. ADAMS. I

GAR TRUCK.

v APPLIGATION FILED SEPT. 6, 1913.

Patented J my 28, 1914.

TED STATES PATENT onrion.

WALTER S. ADAMS, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE J. G.BRILL 00., 0F PHILADELPHIA, PENNSYLVANIA, A. CORPORATION OF PENNSYL-VANIA.

CAR-TRUCK.

Specification of Letters Patent.

Patented July 28, 1914.

Application filed September 5, 1913. Serial N 0. 788,191.

To all whom it may concern Be it known that I, WALTER S. ADAMS, acitizen of the United States, and resident of Philadelphia, in thecounty of Philadelphia and State of Pennsylvania, and whose postofiiceaddress is care of The J G. Brill (10., Sixtysecond street and Woodlandavenue, in said city, have invented certain new and useful Improvementsin Car-Trucks, of which the following is a specification.

My invention relates to improvements in swing bolster car trucks, andparticularly to that class wherein semi-elliptical or leaf springs, orother equivalent form of bolster supports, are carried from the sideframes of the truck by swinging links or hangers, and in which thebolster is supported on said leaf springs, etc., by other springs.

My present invention consists in certain details of construction andcombination of parts hereinafter described, and finally pointed out inthe claims.

In the drawing, forming part of this specification, Figure 1 is a sideelevation showing a portion of the side frame of the car truck and theimproved bolster connection supported therefrom. Fig. 2 is a sideelevation, partly in section, on the line 2-2 of Fig. 1, of a portion ofthe bolster and side-frame, and the spring connection between the leafspring and the bolster. Fig. 3 is a section on the line 33 of Fig. 2,looking in the direction of the arrows, and Fig. 4 is a section on theline 1-4 of Fig. 2.

Similar reference characters designate like parts throughout the severalviews.

For the purpose of describing my invention, I have not deemed itnecessary to i1lustrate an entire truck construction, as those skilledin the art are familiar therewith. However, for the purpose of furtherillustration, reference is made to" the truck shown in patent granted tome on the 14th day of Uctober, 1913, Ser. No. 1,07 6,009.

. In the drawing, 1 is an intermediate por-- tion of the side-bar orupper chord of the car truck. This is usually provided with pedestals ofconventional or desired con struction. It will be understood that all ofthe parts hereinafter described, except the intermediate section of thebolster, are duplicated at each side of the truck the pedestals engagingaxle boxes, which hold axles and wheels in the usual manner. The sidebaror upper chord is connected transversely by the usual transoms 2 shownin dotted lines in Fig. 1.

At 3 are hangers comprising pendant side pieces 4, which hangers embracethe sidebars and rest on their upper ends 5 on bearings 6, the lowerends 7 carrying blocks 8 forming spring seats. A form of hanger of theclass described is' shown in my said patent.

At 9 is the semi-elliptic leaf spring, which, in the present case, isarched upwardly and its ends provided with projections 10 (in dottedlines) engaging the spring seats 8. As above stated, it will beunderstood that there are to be two of such springs, one on each side ofthe truck, and

disposed longitudinally below the side bars 1.

' ster ends comprise a horizontal web 18, having at each side and frontand rear pendant flanges 19, 20 by means of which spring-seats areformed.

The leaf-springs 9 are provided with the usual strap or band 21 at theirarches, and

upon this band is seated the extension 13 which forms a link orspring-seat consisting of a casting 22 having a lower web 23 with anelevated rectangular recess 24 in front embracing the said strap, sideWebs 25 and a wall 26 constituting, with the side walls 25 and rib 27 aspring seat. The link or spring seat 13-22 has inwardly extendsingprojections or ears 28 between which the lug 17 extends and which arepivotally se cured together by the pin 29. The links constitutecontinuations of the bolster ends, and serve to connect the springs 9 oneach side of the truck. Extending between the respective spring seats isa coil or spiral spring 30 which lies within the said leaf springs andbetween them and the pivot pin 29. The bolster is thus supported on theleaf spring by further springs which are arrangedinside of the leafsprings, thereby providing for a resilient support of the bolster on theleaf springs, the inner end of the link 22 lying within the plane of thebolster, and movably engaging it to restrain excessive movement on thespiral springs in either direction, while at the same time permitting ofthe usual movement of the bolster on the spiral springs intakin andrelieving the leaf springs of the car Ioad. Displacement between theconnections in the direction of the length of the leaf springs isprevented by the possible engagement of the flanges, ears 28 and lug 17,there being sufficient play allowed between them for all practicalpurposes, without engagement.

Within the scope of the appended claims, my invention may be variouslyembodied without departing from its spirit.

Having described my invention, I claim:

1. In a car truck, the combination with a truck frame, body su portingsprin supported on the truck f fame, a truck olste'r, links or springseats extending from the said body supporting springs and movablyconnected with the bolster, and further springs extending between thelinks or spring seats and the bolster at a point betweenthe bodysupporting springs and the said movablecomiection.

2. In a cartruck, the combination with a truck frame, body supportingsprings supported on the truck frame outside of the wheel gage, a truckbolster, links or spring seats extending from the said body supportingsprings and movably connected with the bolster, and further springsextendin 'between the links or spring seats an the bolster at a pointwithin the wheel gage and between the body supporting springs and thesaid movable connection.

3. In a car truck, the combination with a truck frame, leaf springssupported on the truckframe, links or spring seats extending fromtheleaf springs, a truck bolster, means for movably connecting the innerends of the said links or spring seats with the bolster, and a springextending between said links or spring seats and the bolster at a pointbetween said leaf springs and said movable connection.

4:. In a car truck, the combination with a truck frame, longitudinallydisposed leaf springs supported on the truck frame, links or springseats extended inwardly from the spring seats, a cross bolster, meansfor movlinks an ably connecting the bolster with said links, and aspring extending between each of said links and the bolster at a pointbetween the leaf springs and said movable connection.

5. In a car truck, the combination with a truck frame, longitudinallydisposed leaf springs supported by the truck frame, links or springseats extending inwardly from said leaf springs, a cross bolster, meansfor movably connecting-the bolster to said'links,

and an upwardly disposed spiral spring extending between each of saidlinks and the bolster at a point between the leaf springs and saidmovable connection.

6. In a car truck, the combination with a truck frame having side bars,hangers thereon, longitudinally disposed leaf springs supported from theside bars by the hangers, links or spring seats extending inwardly fromsaid leaf springs, a cross bolster, means for movably connecting thebolster with said links, and a spiral spring extending between each ofsaid links and the bolster between the leaf springs and said. movableconnection.

7. In a car truck, thecombination with the truck side bars, hangerspendant therefrom, longitudinally disposed leaf springs supported by thehangers, a cross bolster, links or spring seats secured at their outerends to the leaf springs and at their inner ends movably secured to thebolster, and further s rings extending between the said bolster betweenthe said leaf springs and the said movable connection.

8. In a car truck, the combination with the side bars, hangers pendanttherefrom, longitudinally disposed leaf springs connectingthe hangers,links or spring seats secured to the leaf springs and extending inwardlytherefrom, a bolster having ends terminating in sprin seats within theside bars, means for mova ly connecting the ends of said links or springseats with the bolster within its ends, and a spring extending betweensaid bolster ends and said link between the leaf springs and saidmovable connections. 1

9. In a car truck, the combination with a truck 'frame, of thelongitudinally disposed leaf springs and means for supporting them ontruck frame, links or s ring seats secured to the leaf springs anextending inwardly therefrom, ears or extensions on the inner ends ofthe links, a bolster having pendant lugs located between said ears, a'pin for pivoting the said ears and lugs together, the ends of thebolster being provided with spring seats, and a s ring extending betweensaid link and said bolster spring seat.

10. In a car truck, the combination with a truck bolster, of bodysupporting springs, inwardly extending spring seats mounted on the bodysupporting springs and movably connected at their inner ends with theSigned at the city and county of Philadelbolster, further spring seatsformed in the phia, State of Pennsylvania, this 15th day said linksbetween the body supporting of August, 1913.

springs and the said movable connection, WALTERS. ADAMS. spring seatsformed in the bolster ends, and Witnesses: a spring extending betweenthe link spring HENRY C. ESLING,

seats and the bolster spring seats. H. F. MCKILLIP.

